<?php
/**
 * This file contains actions which are used by all gateways
 */
include_once(AMFPHP_BASE . 'shared/util/Authenticate.php');
include_once(AMFPHP_BASE . 'shared/util/NetDebug.php');
include_once(AMFPHP_BASE . 'shared/util/Headers.php');
include_once(AMFPHP_BASE . 'shared/util/CharsetHandler.php');
/**
 * Class loader action loads the class from which we will get the remote method
 */
function classLoaderAction (&$amfbody) {
     
    if(!$amfbody->noExec)
    { 
        // change to the gateway.php script directory
        // now change to the directory of the classpath.  Possible relative to gateway.php
        $dirname = dirname($amfbody->classPath); 
        if(is_dir($dirname))
        {
            chdir($dirname);
        }
        else
        {
            $ex = new MessageException(E_USER_ERROR, "The classpath folder {" . $amfbody->classPath . "} does not exist. You probably misplaced your service." , __FILE__, __LINE__, "AMFPHP_CLASSPATH_NOT_FOUND");
            MessageException::throwException($amfbody, $ex);
            return false;
        }
       
        $fileExists = @file_exists(basename($amfbody->classPath)); // see if the file exists
        if(!$fileExists)
        {
                $ex = new MessageException(E_USER_ERROR, "The class {" . $amfbody->className . "} could not be found under the class path {" . $amfbody->classPath . "}" , __FILE__, __LINE__, "AMFPHP_FILE_NOT_FOUND");
                MessageException::throwException($amfbody, $ex);
                return false;
        }
        
        global $amfphp;
        $time = microtime_float();
        $fileIncluded = Executive::includeClass($amfbody, "./" . basename($amfbody->classPath));
        $amfphp['includeTime'] += microtime_float() - $time;
    
        if (!$fileIncluded) 
        { 
            $ex = new MessageException(E_USER_ERROR, "The class file {" . $amfbody->className . "} exists but could not be included. The file may have syntax errors, or includes at the top of the file cannot be resolved.", __FILE__, __LINE__, "AMFPHP_FILE_NOT_INCLUDED");
            MessageException::throwException($amfbody, $ex);
            return false;
        }
        
        if (!class_exists($amfbody->className))
        { // Just make sure the class name is the same as the file name
                
                $ex = new MessageException(E_USER_ERROR, "The file {" . $amfbody->className . ".php} exists and was included correctly but a class by that name could not be found in that file. Perhaps the class is misnamed.", __FILE__, __LINE__, "AMFPHP_CLASS_NOT_FOUND");
                MessageException::throwException($amfbody, $ex);
                return false;
        }

        //Let executive handle building the class
        //The executive can handle making exceptions and all that, that's why
        $classConstruct = Executive::buildClass($amfbody, $amfbody->className);

        if($classConstruct !== '__amfphp_error')
        {
            $amfbody->setClassConstruct($classConstruct);
        }
        else
        {
            return false;
        }
    }
    return true;
} 

/**
 * MetaDataAction loads the required info from the methodTable
 */
function securityAction (&$amfbody) {
    if(!$amfbody->noExec)
    {
        $classConstruct = &$amfbody->getClassConstruct();
        $methodName = $amfbody->methodName;
        $className = $amfbody->className;
        
        //Check if method exists
        if (!method_exists($classConstruct, $methodName)) { // check to see if the method exists
            $ex = new MessageException(E_USER_ERROR, "The method  {" . $methodName . "} does not exist in class {" . $className . "}.", __FILE__, __LINE__, "AMFPHP_INEXISTANT_METHOD");
            MessageException::throwException($amfbody, $ex);
            return false;
        } 
        
        //Check if method is private (PHP4)
        if (strpos($methodName, '_') === 0) { // check to see if the method exists
            $ex = new MessageException(E_USER_ERROR, "The method  {" . $methodName . "} starts with an underscore and is therefore considered private, so it cannot be remotely called.", __FILE__, __LINE__, "AMFPHP_PRIVATE_METHOD");
            MessageException::throwException($amfbody, $ex);
            return false;
        } 
        
        //Check to see if method is private or protected (PHP5)
        if(class_exists('ReflectionMethod'))
        {
            $method = new ReflectionMethod($className, $methodName);
            if(!$method->isPublic())
            {
                $ex = new MessageException(E_USER_ERROR, "The method  {" . $methodName . "} in {" . $className . "} is not public and therefore cannot be called.", __FILE__, __LINE__, "AMFPHP_PRIVATE_METHOD");
                MessageException::throwException($amfbody, $ex);
                return false;
            }
        }
        
        $classConstruct = &$amfbody->getClassConstruct();
        $methodName = $amfbody->methodName;
        $className = $amfbody->className;
        
        if (method_exists($classConstruct, "beforeFilter")) {            
            //Pass throught the executive
            $allow = Executive::doMethodCall($amfbody, 
                                        $classConstruct, 
                                        'beforeFilter', 
                                        array($methodName));
            if ($allow === '__amfphp_error' || $allow === false) {
                $ex = new MessageException(E_USER_ERROR, "Method access blocked by beforeFilter in " . $className . " class", __FILE__, __LINE__, "AMFPHP_AUTHENTICATE_ERROR");
                MessageException::throwException($amfbody, $ex);
                return false;
            } 
        }
    }
    return true;
}

function adapterMap(&$results)
{
    if(is_array($results))
    {
        array_walk($results, 'adapterMap');
    }
    elseif(is_object($results))
    {
        $className = strtolower(get_class($results));
        if(array_key_exists($className, $GLOBALS['amfphp']['adapterMappings']))
        {
            $type = $GLOBALS['amfphp']['adapterMappings'][$className];
            $results = mapRecordSet($results, $type);
        }
        else
        {
            $vars = get_object_vars($results);
            
            array_walk($vars, 'adapterMap');
            
            foreach($vars as $key => $value)
            {
                $results->$key = $value;
            }
        }
    }
    elseif(is_resource($results))
    {
        $type = get_resource_type($results);
        $str = explode(' ', $type);
        if(in_array($str[1], array("result", 'resultset', "recordset", "statement")))
        {
            $results = mapRecordSet($results, $str[0]);
        }
        else
        {
            $results = false;
        }
    }
    return $results;
}

function mapRecordSet($result, $type)
{
    $classname = $type . "Adapter"; // full class name
    $includeFile = include_once(AMFPHP_BASE . "shared/adapters/" . $classname . ".php"); // try to load the recordset library from the sql folder
    if (!$includeFile) {
        trigger_error("The recordset filter class " . $classname . " was not found");
    } 
    $recordSet = new $classname($result); // returns formatted recordset
    
    return array("columns" => $recordSet->columns, "rows" => $recordSet->rows);
}
?>